Replace IOError with OSError (#16715)
diff --git a/Lib/py_compile.py b/Lib/py_compile.py
index 62d69ad..3cb46d0 100644
--- a/Lib/py_compile.py
+++ b/Lib/py_compile.py
@@ -173,7 +173,7 @@
             except PyCompileError as error:
                 rv = 1
                 sys.stderr.write("%s\n" % error.msg)
-            except IOError as error:
+            except OSError as error:
                 rv = 1
                 sys.stderr.write("%s\n" % error)
     else: